Lexus LX600 (2022 year). Manual in english - page 15

251

4-5. Using the driving support systems

4

D

riv

ing

●

Vehicles with small rear ends (trailers 

with no load on board, etc.)

●

Motorcycles traveling in the same lane

●

When water or snow thrown up by the 

surrounding vehicles hinders the detect-

ing of the sensor

●

When your vehicle is pointing upwards 

(caused by a heavy load in the luggage 

compartment, etc.)

●

Preceding vehicle has an extremely high 

ground clearance

■

Conditions under which the vehicle-to-

vehicle distance control mode may not 

function correctly

In the case of the following conditions, 

operate the brake pedal (or accelerator 

pedal, depending on the situation) as nec-

essary.
As the sensor may not be able to correctly 

detect vehicles ahead, the system may not 

operate properly.

●

When the road curves or when the lanes 

are narrow

●

When steering wheel operation or your 

position in the lane is unstable

●

When the vehicle ahead of you deceler-

ates suddenly

●

When driving on a road surrounded by a 

structure, such as in a tunnel or on a 

bridge

●

While the vehicle speed is decreasing to 

the set speed after the vehicle acceler-

ates by depressing the accelerator pedal

■

Situations in which the curve speed 

reduction function may not operate 

properly

In situations such as the following, the curve 

speed reduction function may not operate 

properly:

●

When the vehicle is being driven around 

a curve on an incline/decline

●

When the course of the vehicle differs 

from the shape of the curve

●

When the vehicle speed is excessively 

high when entering a curve

●

When the steering wheel is suddenly 

operated

252

4-5. Using the driving support systems

■

Stopping the engine

While driving with the D shift position 
selected, depress the brake pedal and 
stop the vehicle. The engine will stop 
automatically.

When the engine stops, the Stop & Start 
indicator will illuminate.

■

Restarting the engine

Release the brake pedal. The engine 
will start automatically.

When the engine starts, the Stop & Start 
indicator will turn off.

■

When the brake hold system is 
operating



When the engine is stopped by the 
Stop & Start system, if the brake 

pedal is released the engine will 
remain stopped.



If the accelerator pedal is depressed 
while the engine is stopped by the 
Stop & Start system, the engine will 
restart.



While the engine is stopped by the 
Stop & Start system, if the engine is 
restarted, the brake hold system will 
continue to apply the brakes, unless 
the operation conditions of the 
brake hold system are no longer 
met. (



P.200)

■

When the dynamic radar cruise 
control with full-speed range is 
operating



When the vehicle is stopped by the 
dynamic radar cruise control with 
full-speed range, the engine will 
stop automatically even though the 
brake pedal is not depressed.



When the preceding vehicle starts 
off, the engine will restart automati-
cally.



If the engine is restarted by the Stop 
& Start system while the vehicle is 
stopped by the dynamic radar 
cruise control with full-speed range, 
the vehicle will remain stopped.

Press the Stop & Start cancel switch to 
disable the Stop & Start system.
The Stop & Start cancel indicator will 
illuminate.

Pressing the switch again will enable the 

Stop & Start system

The Stop & Start system stops and 
starts the engine according to 
brake pedal or shift lever operation 
when the vehicle is stopped, such as 
at a stoplight, intersection, etc., in 
order to improve fuel economy and 
reduce noise pollution caused by 
the engine idling.

Stop & Start system operation

Disabling the Stop & Start sys-
tem

253

4-5. Using the driving support systems

4

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ing

Stop & Start system and the Stop & Start 
cancel indicator will turn off.

■

Automatic enabling of the Stop & Start 

system

If the Stop & Start system is disabled using 

the Stop & Start cancel switch, it will be 

automatically re-enabled once the engine 

switch is turned off and then the engine is 

started.

When the engine is stopped by the 
Stop & Start system when the vehicle is 
on an incline, when the brake pedal is 
released, brake force is temporarily 
maintained to prevent the vehicle from 
rolling backwards before the engine is 
restarted and drive force is generated. 
When drive force is generated, the 
maintained brake force is automati-
cally canceled.



This function operates on flat sur-
faces as well as steep inclines.



Sound may be generated from the 
brake system, but this does not indi-
cate a malfunction.



Brake pedal response may change 
and vibration may occur, but this 
does not indicate a malfunction.

■

Points for use

●

If the engine switch is pressed when the 

engine is stopped by the Stop & Start sys-

tem, the engine will not be able to be 

restarted by the automatic engine start 

function. In this case, restart the engine 

using the normal engine starting proce-

dure. (



P.188)

●

When the engine is being restarted by 

the Stop & Start system, the power out-

lets may be temporarily unusable, but this 

does not indicate a malfunction.

●

Installation and removal of electrical 

components and wireless devices may 

affect the Stop & Start system. Contact 

your Lexus dealer for details.

●

When stopping the vehicle for a longer 

period of time, turn the engine switch off 

to stop the engine completely.

●

When the engine is stopped by the Stop 

& Start system, the steering wheel feel 

heavy.

●

While driving in L4 mode, it is recom-

mended that the Stop & Start system be 

canceled because the system may not 

operate properly.

■

Operating conditions

●

The Stop & Start system is operational 

when all of the following conditions are 

met:

• The vehicle has been driven a certain 

amount of time.

• The brake pedal is being depressed 

firmly.

(Except when the vehicle is stopped by the 
dynamic radar cruise control with full-
speed range when in vehicle-to-vehicle dis-
tance control mode)
• The D shift position is selected.

• The driver’s seat belt is fastened.

• The driver’s door is closed.

• The center differential is not locked.

• The Multi-terrain Select is not operated.

• The windshield defogger is off.

• The accelerator pedal is not being 

depressed.

• The engine is adequately warmed up.

• The outside temperature is 23°F (-5°C) 

or higher.

Hill-start assist control

254

4-5. Using the driving support systems

• The hood is closed. (



P.254)

●

In the following situations the engine may 

not be stopped by the Stop & Start sys-

tem. This is not a malfunction of the Stop 

& Start system.

• When the air conditioning system is 

being used.

• When the battery is undergoing a peri-

odic recharge.

• When the battery is not sufficiently 

charged, such as if the vehicle has been 

parked for a long time and the battery 

charge has decreased, the electric load is 

large, the battery fluid temperature is 

excessively low or the battery has deteri-

orated.

• When the elapsed time since the engine 

was restarted is short.

• When the vehicle is stopped frequently, 

such as when in a traffic jam.

• When the engine coolant temperature or 

transmission fluid temperature is 

extremely low or high.

• When the vehicle is stopped on a steep 

incline.

• When the steering wheel is being oper-

ated.

• When the vehicle is being driven in a high 

altitude area.

• When the battery fluid temperature is 

extremely low or high.

• For a while after the battery terminals 

have been disconnected and recon-

nected.

●

When the engine is stopped by the Stop 

& Start system, the engine will be 

restarted automatically if any of the fol-

lowing conditions are met:

(To enable the engine to be stopped by the 
Stop & Start system again, drive the vehi-
cle.)
• The air conditioning system is turned on.

• The  windshield  defogger is turned on.

• The shift lever is shifted from D or P.

• The shift lever is shifted from P. (When 

the engine is stopped by the Stop & Start 

system when the shift lever is in P.)

• The driver’s seat belt is unfastened.

• The driver’s door is opened.

• The center differential is locked.

• The Multi-terrain Select is operated.

• The Stop & Start cancel switch is pressed.

• The steering wheel is operated.

• The accelerator pedal is depressed.

• The vehicle starts to roll on an incline.

●

When the engine is stopped by the Stop 

& Start system, the engine may restart 

automatically in the following situations: 

(To enable the engine to be stopped by 

the Stop & Start system again, drive the 

vehicle.)

• When the air conditioning system is 

being used.

• When a switch of the air conditioning sys-

tem is operated (windshield defogger 

switch, etc.).

• If the battery charge becomes low.

■

When the hood is opened

●

If the hood is opened while the engine is 

stopped by the Stop & Start system, the 

engine will stall and will not be able to be 

restarted by the automatic engine start 

function. In this case, restart the engine 

using the normal engine starting proce-

dure. (



P.188)

●

If the hood is closed after the engine is 

started with the hood open, the Stop & 

Start system will not operate. Close the 

hood, turn the engine switch off, wait 30 

seconds or more, and then start the 

engine.

■

Air conditioning system operation while 

the engine is stopped by the Stop & 

Start system

When the air conditioning is in automatic 

mode and the engine is stopped by the Stop 

& Start system, the fan may operate at a low 

speed in order to prevent the temperature 

in the cabin from increasing or decreasing 

or may be stopped.
To prioritize air conditioning system perfor-

mance when the vehicle is stopped, disable 

the Stop & Start system by pressing the 

Stop & Start cancel switch.

●

If the windshield is fogged up

Turn the windshield defogger on. 
(



P.388)

If the windshield fogs up frequently, press 
the Stop & Start cancel switch to disable the 
Stop & Start system.

255

4-5. Using the driving support systems

4

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riv

ing

●

If an odor is emitted from the air condi-

tioning system

Press the Stop & Start cancel switch to 
deactivate the Stop & Start system.

■

Changing the idling stop time with the 

air conditioning system on

The length of time the Stop & Start system 

will operate when the air conditioning sys-
tem is on can be changed in 

 of the 

multi-information display (



P.81). (The 

length of time the Stop & Start system will 

operate when the air conditioning system is 

off cannot be changed.)

■

Displaying the Stop & Start system sta-

tus



P.81

■

Multi-information display messages

If the following situations, 

 and a mes-

sage may be displayed on the multi-infor-

mation display.

●

When the engine cannot be stopped by 

the Stop & Start system

 “Press Brake More to Activate”

• The brake pedal is not sufficiently 

depressed.



If the brake pedal is depressed further, 

the system will operate.

 “Non-dedicated Battery”

• A battery not designed for use with a 

Stop & Start system may have been 

installed.



Have the vehicle inspected by your 

Lexus dealer.

 “Battery Charging”

• The battery charge may be low.



Stopping of the engine is temporarily 

prohibited to prioritize charging of the bat-
tery. After the engine runs for a certain 
amount of time, the system will be enabled.
• A refresh charge may be occurring



After a refresh charge for up to an hour 

completes, the system can be operated.

• If displayed continuously for a long time 

(more than an hour)



The battery may be deteriorated. Con-

tact your Lexus dealer for details.

 “Stop & Start System Unavailable”

• The Stop & Start system is temporarily 

disabled.



Allow the engine to run for some time.

• The engine may have been started with 

the hood open.



Close the hood, turn the engine switch 

off, wait for 30 seconds or more, and then 
start the engine.

 “For Climate Control”

• The air conditioning system is being used 

when the ambient temperature is high or 

low.



If the difference between the set tem-

perature and cabin temperature becomes 
small, the system will be enabled.
• The windshield defogger is on.

●

When the engine automatically restarts 

while stopped by the Stop & Start system

 “For Climate Control”

• The air conditioning system has been 

turned on or is being used.

• The windshield defogger has been 

turned on.

 “Battery Charging”

• The battery charge may be low.



The system will be enabled after the 

engine runs to sufficiently charge the bat-
tery.

■

When the buzzer sounds

If the driver’s door is opened when the 

engine is stopped by the Stop & Start sys-

tem and the shift lever is in D, a buzzer will 

sound and the Stop & Start system indicator 

will flash. To stop the buzzer, close the 

driver’s door.

■

The Stop & Start system protection 

function

●

When the volume of the audio system is 

256

4-5. Using the driving support systems

excessively high, sound output from the 

audio system may suddenly be cut off in 

order to reduce battery consumption. To 

prevent the audio system from being cut 

off, keep the volume of audio system at a 

moderate level. If the audio system has 

been cut off, turn the engine switch off, 

wait for 3 seconds or more and then turn 

it to ACC or ON to re-enable the audio 

system.

●

The audio system may not be activated if 

the battery terminals are disconnected 

and then reconnected. If this occurs, turn 

the engine switch off and then repeat the 

following operation twice to activate the 

audio system normally.

• Turn the engine switch to ON and then to 

off.

■

Replacing the battery



P.527

■

If the Stop & Start cancel indicator 

flashes continuously

The system may be malfunctioning. Have 

the vehicle inspected by your Lexus dealer.

■

If “Stop & Start System Malfunction 

Visit Your Dealer” is displayed on the 

multi-information display

The system may be malfunctioning. Have 

the vehicle inspected by your Lexus dealer.

WARNING

■

When the Stop & Start system is 

operating

Make sure to disable the Stop & Start 

system while the vehicle is in a poorly 

ventilated area.
If not disabled, the engine may be auto-

matically restarted unexpectedly, caus-

ing exhaust gases to collect and enter the 

vehicle, possibly resulting in death or a 

serious health hazard.

●

Do not leave the vehicle while the 

engine is stopped by the Stop & Start 

system (while the Stop & Start indica-

tor is on). An accident may occur due 

to the automatic engine start function.

●

Depress the brake pedal and apply the 

parking brake when necessary while 

the engine is stopped by the Stop & 

Start system (while the Stop & Start 

indicator is on).

NOTICE

■

To ensure the system operates cor-

rectly

If any of the following situations occur, 

the Stop & Start system may not operate 

correctly. Have your vehicle inspected 

by your Lexus dealer.

●

While the driver’s seat belt is fastened, 

the driver’s and front passenger’s seat 

belt reminder light flashes.

●

Even though the driver’s seat belt is 

not fastened, the driver’s and front 

passenger’s seat belt reminder light 

does not illuminate.

●

Even though the driver’s door is 

closed, the open door warning light is 

illuminated or the interior light is illumi-

nated when the interior light switch is 

in the door position.

●

Even though the driver’s door is open, 

the open door warning light does not 

illuminate or the interior light does not 

illuminate when the interior light switch 

is in the door position.

257

4-5. Using the driving support systems

4

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Meter control switches

Turning the Blind Spot Monitor on/off.

Outside rear view mirror indicators

When a vehicle is detected in a blind spot 
of the outside rear view mirrors or 
approaching rapidly from behind into a 
blind spot, the outside rear view mirror 
indicator on the detected side will illumi-
nate. If the turn signal lever is operated 
toward the detected side, the outside rear 
view mirror indicator flashes.

BSM OFF indicator

Illuminates when the Blind Spot Monitor is 
disabled.

■

Outside rear view mirror indicators visi-

bility

In strong sunlight, the outside rear view mir-

ror indicator may be difficult to see.

■

When “Blind Spot Monitor Unavailable 

See Owner’s Manual” is shown on the 

multi-information display

Ice, snow, mud, etc., may be attached to the 

rear bumper around the sensors. 

(



P.258)

The system should return to normal opera-

tion after removing the ice, snow, mud, etc., 

from the rear bumper. Additionally, the sen-

sors may not operate normally when driving 

in extremely hot or cold environments.

■

When “Blind Spot Monitor Malfunction 

Visit Your Dealer” is shown on the multi-

information display

There may be a sensor malfunction or mis-

aligned. Have the vehicle inspected at a 

Lexus dealer.

■

Customization

Some functions can be customized. (Cus-

tomizable features: 



P.561)

BSM (Blind Spot Monitor)

The Blind Spot Monitor is a system 
that uses rear side radar sensors 
installed on the inner side of the 
rear bumper on the left and right 
side to assist the driver in confirm-
ing safety when changing lanes.

WARNING

■

Cautions regarding the use of the 

system

The driver is solely responsible for safe 

driving. Always drive safely, taking care 

to observe your surroundings.

The Blind Spot Monitor is a supplemen-

tary function which alerts the driver that a 

vehicle is in a blind spot of the outside 

rear view mirrors or is approaching rap-

idly from behind into a blind spot. Do not 

overly rely on the Blind Spot Monitor. As 

the function cannot judge if it is safe to 

change lanes, over reliance could lead to 

an accident resulting in death or serious 

injury.
As the system may not function correctly 

under certain conditions, the driver’s 

own visual confirmation of safety is nec-

essary.

System components

A

B

C

258

4-5. Using the driving support systems

Use the meter control switches to turn 
on/off the function. (



P.82)

1

Press the meter control switch to 
select .

2

Press the meter control switch to 
select 

 and then press 

.

When the BSM function is disabled, the 

BSM OFF indicator illuminates. (Each time 

the engine switch is turned to OFF then 

changed to ON, the Blind Spot Monitor 

will be enabled automatically.)

WARNING

■

To ensure the system can operate 

properly

Blind Spot Monitor sensors are installed 

inside the left and right sides of the rear 

bumper respectively. Observe the fol-

lowing to ensure the Blind Spot Monitor 

can function correctly.

●

Keep the sensors and the surrounding 

areas on the rear bumper clean at all 

times. 

If a sensor or its surrounding area on 

the rear bumper is dirty or covered 

with snow, the Blind Spot Monitor may 

not operate and a warning message 

(



P.257) will be displayed. In this sit-

uation, clear off the dirt or snow and 

drive the vehicle with the operation 

conditions of the BSM function 

(



P.260) satisfied for approximately 

10 minutes. If the warning message 

does not disappear, have the vehicle 

inspected by your Lexus dealer.

●

Do not attach accessories, stickers 

(including transparent stickers), alumi-

num tape, etc. to a sensor or its sur-

rounding area on the rear bumper.

●

Do not subject a sensor or its sur-

rounding area on the rear bumper to a 

strong impact. 

If a sensor is moved even slightly off 

position, the system may malfunction 

and vehicles may not be detected cor-

rectly. 

In the following situations, have your 

vehicle inspected by your Lexus 

dealer.

• A sensor or its surrounding area is 

subject to a strong impact.

• If the surrounding area of a sensor is 

scratched or dented, or part of them 

has become disconnected.

●

Do not disassemble the sensor.

●

Do not modify the sensor or surround-

ing area on the rear bumper.

●

If a sensor or the rear bumper needs to 

be removed/installed or replaced, 

contact your Lexus dealer.

●

Do not paint the rear bumper any 

color other than an official Lexus color.

Turning the Blind Spot Monitor 
on/off

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4-5. Using the driving support systems

4

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■

Vehicles that can be detected by the Blind Spot Monitor

The Blind Spot Monitor uses rear side radar sensors to detect the following vehi-
cles traveling in adjacent lanes and advises the driver of the presence of such vehi-
cles via the indicators on the outside rear view mirrors.

Vehicles that are traveling in areas that are not visible using the outside rear 
view mirrors (the blind spots)

Vehicles that are approaching rapidly from behind in areas that are not visible 
using the outside rear view mirrors (the blind spots)

■

The Blind Spot Monitor detection areas

The areas that vehicles can be detected in are outlined below.

The range of each detection area is:

Approximately 1.6 ft. (0.5 m) to 11.5 ft. (3.5 m) from either side of the vehicle

*1

Approximately 3.3 ft. (1 m) forward of the rear bumper

Approximately 9.8 ft. (3 m) from the rear bumper

Approximately 9.8 ft. (3 m) to 197 ft. (60 m) from the rear bumper

*2

*1

: The area between the side of the vehicle and 1.6 ft. (0.5 m) from the side of the vehicle 

cannot be detected.

Blind Spot Monitor operation

A

B

A
B
C
D

260

4-5. Using the driving support systems

*2

: The greater the difference in speed between your vehicle and the detected vehicle is, 

the farther away the vehicle will be detected, causing the outside rear view mirror indi-
cator to illuminate or flash.

■

The Blind Spot Monitor is operational 

when

The Blind Spot Monitor is operational when 

all of the following conditions are met:

●

The Blind Spot Monitor is on.

●

The shift lever is in a position other than R.

●

The vehicle speed is greater than 

approximately 6 mph (10 km/h).

■

The Blind Spot Monitor will detect a 

vehicle when

The Blind Spot Monitor will detect a vehicle 

present in the detection area in the follow-

ing situations:

●

A vehicle in an adjacent lane overtakes 

your vehicle.

●

You overtake a vehicle in an adjacent 

lane slowly.

●

Another vehicle enters the detection 

area when it changes lanes.

■

Conditions under which the system will 

not detect a vehicle

The Blind Spot Monitor is not designed to 

detect the following types of vehicles 

and/or objects:

●

Small motorcycles, bicycles, pedestrians, 
etc.

*

●

Vehicles traveling in the opposite direc-

tion

●

Guardrails, walls, signs, parked vehicles 
and similar stationary objects

*

●

Following vehicles that are in the same 
lane

*

●

Vehicles traveling 2 lanes away from 
your vehicle

*

●

Vehicles which are being overtaken rap-

idly by your vehicle

*

: Depending on the conditions, detection 

of a vehicle and/or object may occur.

■

Conditions under which the system may 

not function correctly

●

The Blind Spot Monitor may not detect 

vehicles correctly in the following situa-

tions:

• When the sensor is misaligned due to a 

strong impact to the sensor or its sur-

rounding area

• When mud, snow, ice, a sticker, etc., is 

covering the sensor or surrounding area 

on the rear bumper

• When driving on a road surface that is 

wet with standing water during bad 

weather, such as heavy rain, snow, or fog

• When multiple vehicles are approaching 

with only a small gap between each vehi-

cle

• When the distance between your vehicle 

and a following vehicle is short

• When there is a significant difference in 

speed between your vehicle and the 

vehicle that enters the detection area

• When the difference in speed between 

your vehicle and another vehicle is 

changing

• When a vehicle enters a detection area 

traveling at about the same speed as your 

vehicle

• As your vehicle starts from a stop, a vehi-

cle remains in the detection area

• When driving up and down consecutive 

steep inclines, such as hills, dips in the 

road, etc.

• When driving on roads with sharp bends, 

consecutive curves, or uneven surfaces

• When vehicle lanes are wide, or when 

driving on the edge of a lane, and the 

vehicle in an adjacent lane is far away 

from your vehicle

• When towing a trailer

• When an accessory (such as a bicycle 

carrier) is installed to the rear of the vehi-

cle

• When there is a significant difference in 

height between your vehicle and the 

vehicle that enters the detection area

• Immediately after the Blind Spot Monitor 

is turned on

●

Instances of the Blind Spot Monitor 

261

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4

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unnecessarily detecting a vehicle and/or 

object may increase in the following situ-

ations:

• When the sensor is misaligned due to a 

strong impact to the sensor or its sur-

rounding area

• When the distance between your vehicle 

and a guardrail, wall, etc., that enters the 

detection area is short

• When driving up and down consecutive 

steep inclines, such as hills, dips in the 

road, etc.

• When vehicle lanes are narrow, or when 

driving on the edge of a lane, and a vehi-

cle traveling in a lane other than the adja-

cent lanes enters the detection area

• When driving on roads with sharp bends, 

consecutive curves, or uneven surfaces

• When the tires are slipping or spinning

• When the distance between your vehicle 

and a following vehicle is short

• When an accessory (such as a bicycle 

carrier) is installed to the rear of the vehi-

cle

■

Types of sensors

Front corner sensors

Front center sensors

Rear corner sensors

Rear center sensors

■

Display (Multimedia Display)

When the sensors detect an object, 
such as a wall, a graphic is shown on 
the Multimedia Display depending on 
the position and distance to the object. 
(As the distance to the object becomes 
short, the distance segments may 
blink.)
A simplified image is displayed on the 
screen when an obstacle is detected 

Intuitive parking assist

The distance from your vehicle to 
objects, such as a wall, when paral-
lel parking or maneuvering into a 
garage is measured by the sensors 
and communicated via the Multi-
media Display and a buzzer. Always 
check the surrounding area when 
using this system.

System components

A
B
C
D

262

4-5. Using the driving support systems

while magnified display is shown. 
(



P.287)

Use the meter control switches to turn 
on/off the function. (



P.82)

1

Press the meter control switch to 
select .

2

Press the meter control switch to 
select 

 and then press 

.

When the intuitive parking assist function is 
disabled, the intuitive parking assist OFF 
indicator (



P.75) illuminates on the multi-

information display.

To re-enable the system, select 

 on the 

multi-information display, select 

 and 

turn it on.
If the system is disabled, it will remain off 
even if the engine switch is turned to ON 
after the engine switch has been turned off.

Turning intuitive parking assist 
on/off

WARNING

■

Cautions regarding the use of the 

system

There is a limit to the degree of recogni-

tion accuracy and control performance 

that this system can provide, do not 

overly rely on this system. The driver is 

always responsible for paying attention 

to the vehicle’s surroundings and driving 

safely.

■

To ensure the system can operate 

properly

Observe the following precautions.
Failing to do so may result in the vehicle 
being unable to be driven safely and pos-
sibly cause an accident.

●

Do not damage the sensors, and 

always keep them clean.

●

Do not attach a sticker or install an 

electronic component, such as a back-

lit license plate (especially fluorescent 

type), fog lights, fender pole or wire-

less antenna near a radar sensor.

●

Do not subject the surrounding area of 

the sensor to a strong impact. If sub-

jected to an impact, have the vehicle 

inspected by your Lexus dealer. If the 

front or rear bumper needs to be 

removed/installed or replaced, con-

tact your Lexus dealer.

●

Do not modify, disassemble or paint 

the sensors.

●

Do not attach a license plate cover.

●

Keep your tires properly inflated.

■

When to disable the function

In the following situations, disable the 

function as it may operate even though 

there is no possibility of a collision.

●

Failing to observe the warnings above.

●

A non-genuine Lexus suspension 

(lowered suspension, etc.) is installed.

■

Notes when washing the vehicle

Do not apply intensive bursts of water or 

steam to the sensor area.
Doing so may result in the sensor mal-

functioning.

●

When using a high pressure washer to 

wash the vehicle, do not spray the sen-

sors directly, as doing so may cause a 

sensor to malfunction.

263

4-5. Using the driving support systems

4

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■

The system can be operated when

●

The engine switch is in ON.

●

Intuitive parking assist function is on.

●

The vehicle speed is less than about 6 

mph (10 km/h).

●

The shift lever is in other than P.

■

If “Parking Assist Unavailable” is dis-

played on the multi-information display

●

A sensor may be covered with water 

drops, ice, snow, dirt, etc. Remove the 

water drops, ice, snow, dirt, etc., from the 

sensor to return the system to normal.

Also, due to ice forming on a sensor at 

low temperatures, a warning message 

may be displayed or the sensor may not 

be able to detect an object. Once the ice 

melts, the system will return to normal.

If a warning message is displayed even if 

the sensor is clean, there may be a sensor 

malfunction. Have the vehicle inspected 

by your Lexus dealer.

●

Water may be continuously flowing over 

the sensor surface, such as in a heavy 

rain. When the system determines that it 

is normal, the system will return to nor-

mal.

■

Sensor detection information

●

The sensor’s detection areas are limited 

to the areas around the vehicle’s front 

and rear bumpers.

●

The following situations may occur 

during use.

• Depending on the shape of the object 

and other factors, the detection distance 

may shorten, or detection may be impos-

sible.

• Detection may be impossible if static 

objects draw too close to the sensor.

• There will be a short delay between static 

object detection and display (warning 

buzzer sounds). Even at low speeds, 

there is a possibility that the object will 

come within 11.9 in. (30 cm) before the 

display is shown and the warning buzzer 

sounds.

• It might be difficult to hear the buzzer due 

to the volume of the audio system or air 

flow noise of the air conditioning system.

• It may be difficult to hear the sound of this 

system due to the buzzers of other sys-

tems.

■

Objects which the system may not prop-

erly detect

The shape of the object may prevent the 

sensor from detecting it. Pay particular 

attention to the following objects:

●

Wires, fences, ropes, etc.

●

Cotton, snow and other materials that 

absorb sound waves

●

Sharply-angled objects

●

Low objects

●

Tall objects with upper sections project-

ing outwards in the direction of your vehi-

cle

■

Situations in which the system may not 

operate properly

Certain vehicle conditions and the sur-

rounding environment may affect the ability 

of a sensor to correctly detect objects. Par-

ticular instances where this may occur are 

listed below.

●

There is dirt, snow, water drops or ice on 

a sensor. (Cleaning the sensors will 

resolve this problem.)

●

A sensor is frozen. (Thawing the area will 

resolve this problem.) 

In especially cold weather, if a sensor is 

frozen the sensor display may be dis-

played abnormally, or objects, such as a 

wall, may not be detected.

●

When a sensor or the area around a sen-

sor is extremely hot or cold.

WARNING

●

When using steam to clean the vehi-

cle, do not direct steam too close to 

the sensors as doing so may cause a 

sensor to malfunction.

264

4-5. Using the driving support systems

●

On an extremely bumpy road, on an 

incline, on gravel, or on grass.

●

When vehicle horns, vehicle detectors, 

motorcycle engines, air brakes of large 

vehicles, the clearance sonar of other 

vehicles or other devices which produce 

ultrasonic waves are near the vehicle.

●

A sensor is coated with a sheet of spray 

or heavy rain.

●

If objects draw too close to the sensor.

●

When a pedestrian is wearing clothing 

that does not reflect ultrasonic waves (ex. 

skirts with gathers or frills).

●

When objects that are not perpendicular 

to the ground, not perpendicular to the 

vehicle traveling direction, uneven, or 

waving are in the detection range.

●

Strong wind is blowing.

●

When driving in inclement weather such 

as fog, snow or a sandstorm.

●

When an object that cannot be detected 

is between the vehicle and a detected 

object.

●

If an object such as a vehicle, motorcycle, 

bicycle or pedestrian cuts in front of the 

vehicle or runs out from the side of the 

vehicle.

●

If the orientation of a sensor has been 

changed due to a collision or other 

impact

●

When equipment that may obstruct a 

sensor is installed, such as a towing eye-

let, bumper protector (an additional trim 

strip, etc.), bicycle carrier, or snow plow.

●

If the front of the vehicle is raised or low-

ered due to the carried load.

●

If the vehicle cannot be driven in a stable 

manner, such as when the vehicle has 

been in an accident or is malfunctioning.

●

When tire chains, a compact spare tire or 

an emergency tire puncture repair kit are 

used.

■

Situations in which the system may 

operate even if there is no possibility of a 

collision

In some situations, such as the following, the 

system may operate even though there is 

no possibility of a collision.

●

When driving on a narrow road

●

When driving toward a banner, flag, low-

hanging branch or boom barrier (such as 

those used at railroad crossings, toll 

gates and parking lots)

●

When there is a rut or hole in the surface 

of the road

●

When driving on a metal cover (grating), 

such as those used for drainage ditches

●

When driving up or down a steep slope

●

If a sensor is hit by a large amount of 

water, such as when driving on a flooded 

road

●

There is dirt, snow, water drops or ice on 

a sensor. (Cleaning the sensors will 

resolve this problem.)

●

A sensor is coated with a sheet of spray 

or heavy rain

●

When driving in inclement weather such 

as fog, snow or a sandstorm

●

When strong winds are blowing

265

4-5. Using the driving support systems

4

D

riv

ing

●

When vehicle horns, vehicle detectors, 

motorcycle engines, air brakes of large 

vehicles, the clearance sonar of other 

vehicles or other devices which produce 

ultrasonic waves are near the vehicle

●

If the front of the vehicle is raised or low-

ered due to the carried load

●

If the orientation of a sensor has been 

changed due to a collision or other 

impact

●

The vehicle is approaching a tall or 

curved curb

●

Driving close to columns (H-shaped steel 

beams, etc.) in multi-story parking 

garages, construction sites, etc.

●

If the vehicle cannot be driven in a stable 

manner, such as when the vehicle has 

been in an accident or is malfunctioning

●

On an extremely bumpy road, on an 

incline, on gravel, or on grass

●

When tire chains, a compact spare tire or 

an emergency tire puncture repair kit are 

used.

■

Detection range of the sensors

Approximately 3.3 ft. (100 cm)

Approximately 4.9 ft. (150 cm)

Approximately 2.0 ft. (60 cm)

The diagram shows the detection 
range of the sensors. Note that the 
sensors cannot detect objects that are 
extremely close to the vehicle.
The range of the sensors may change 
depending on the shape of the object, 
etc.

■

The distance and buzzer

Sensor detection display, object 
distance

A
B
C

Approximate distance to obstacle

Buzzer

Front sensor:
3.3 ft. to 2.0 ft. (100 cm to 60 cm)

*

Rear sensor:
4.9 ft. to 2.0 ft. (150 cm to 60 cm)

*

Slow

2.0 ft. to 1.5 ft. (60 cm to 45 cm)

*

Medium

1.5 ft. to 1.0 ft. (45 cm to 30 cm)

*

Fast

266

4-5. Using the driving support systems

*

: Automatic buzzer mute function is enabled. (



P.266)

■

Buzzer operation and distance to 
an object

A buzzer sounds when the sensors are 
operating.



The buzzer beeps faster as the vehi-
cle approaches an object.
When the vehicle comes within 
approximately 1.0 ft. (30 cm) of the 
object, the buzzer sounds continu-
ously.



When 2 or more sensors simultane-
ously detect a static object, the 
buzzer sounds for the nearest 
object.



Even when the sensors are operat-
ing, the buzzer will be muted in 
some situations. (automatic buzzer 
mute function)

■

Adjusting the buzzer volume

The buzzer volume can be adjusted on 
the multi-information display.
Use the meter control switches to 
change settings. (



P.82)

1

Press the meter control switch to 
select .

2

Press the meter control switch to 
select “Vehicle Settings”.

3

Select “

Volume” and then press 

.

Each time the switch is pressed, the vol-

ume level will change between 1, 2, and 3.

■

Muting a buzzer

A mute button will be displayed on the 
multi-information display and Multime-
dia Display when an object is detected. 
To mute the buzzer, press 

 or 

. 

The buzzers for the intuitive parking 
assist, RCTA function and RCD func-
tion will be muted simultaneously.
Mute will be canceled automatically in 
the following situations:



When the shift lever is changed.



When the vehicle speed exceeds a 
certain speed.



When there is a malfunction in a 
sensor or the system is temporarily 
unavailable.



When the operating function is dis-
abled manually.



When the engine switch is turned 
off.

1.0 ft. to 0.5 ft. (30 cm to 15 cm)

Continuous

Less than 0.5 ft. (15 cm)

Approximate distance to obstacle

Buzzer